C520 Mu Xinyan's Request

Mu Xinyan said expressionlessly: "You must have gained a lot from the journey to the Carefree Saint's Realm, right? Did you get any rare metal materials? "

Qin Yuan remembered that Mu Xinyan was obsessed with mechanical things, so she loved to collect all kinds of rare metals. In this industry, Qin Yuan's thoughts were all on increasing the strength of his warriors